cowan



(No Model.)

E. ATWOOD 85 G. H.- COWAN.

BOBBIN.

No. 371296, Patented Oct. 11,1887.

UNITED STATES PATENT OFFICE,

EUGENE ATYVOOD AND CHARLES H. COWAN, OF STONINGTON, CONNECTI- OUT, ASSIGNORS TO THE ATWOOD MACHINE COMPANY, OF SAME PLACE.

BOBBIN.

SPCIFICATION forming part of Letters Patent No. 371296, dated October 11, 1887.

Application filed May 8, 1884. Serial No. 130,'717, (No model.)

Ta aZZ whom it? may concc'n:

'Be it known that we, EUGENE ATWOOD and CHARLES H. COWAN, both of Stonington, in the county of New London and State of Connecticut, have in vented a new and useful Improvement in Bobhins, of which the following is a specification, reference being had to the accompanying drawings, forning part of this specification.

The ron-headed bobbins used in spinning commonly have the ironheads composed of flat disks of wroughtiron plate secured by screws to the ends of the wooden body or barrel, and have the journals formed of the ends of an axle consisting of a' piece of rodiron driven tightly into the barrel and heads. Commonly the tight fit of theaxle is all that keeps it in place, and the result is that with rough usage the aXle is apt to be displaced. Sometimes the aXle is 'Secured by pinning through it and the body or barrel transversely.

The object of this invention is to obtain an iron-headed hobbin the journals of which will not be liable to displacenent, and which is less costly than one in which the heads are secured to the barrel by screws and the axle is secnred in the barrel by a transverse pin; and to this end the invention consists in an iron-headed bobbin having the journals integral with the heads, and having the heads secured to the barrel-by means of a screwthrcaded central bolt or connection onto which the heads are screwed.

It also consists in a novel Construction of the inner faces of the heads, as hereinafter described, whereby they are centered to the heads and are made to give them a good hold upon the central bolt or connection.

Figure 1, in the drawings, is an external longitudinal view of a bobbin constructed according to our invention. Fig. 2 is a central longitudinal section of the same, with the cen tral bolt in elevation.

Similar letters of reference indicate corresponding parts in the several figures.

A is the wooden barrel, B B are the heads, and C is the central bolt forning the connection between the heads.

The barrel is bored centrally considerably in the inner faces of the heads, surrounding the hubs b b, annular recesses e e, which receive the ends of the barrel in such a manner as to prevent the silk or other thread froni entering between the barrel and the heads.

To. assernble the parts to make a complete 6 bobbin one of the heads is screwed onto one end of the central bolt, the barrel is then placed over the said` bolt and on the hub of the head, and the other head is then screwed onto the other end of the bolt far enough to clamp the heads tightly againstthe ends of the barrel, and so secure all the parts very firmly together.

The journals may be milled or turned true,

and the hubs b I nay also be milled or turned to make them fit properly into the ends of the bore of the barrel.

hat we claim as our invention, and desire to secure by Letters Patent, is

1. The combination of the barrel, the separate heads having the journals integral with them, and the central bolt or connection having the heads screwed on the ends thereof, substantially as herein described.

2. .The combination of the barrel A, the

heads B, having integral journals d, recesses e, and tappcd hubs b, and the central bolt, O, screw-threaded to fit the said hubs b, substantially as hereiu described.

3. The conbination of the barrel A, the go heads B, with the hubs b and recesses e, and

the central rod, C, screw-threaded to fit the hubs b, all substantially as herein set forth.

EUGENE ATWOOD.

4 C. H. COWAN.

YVitnesses:

J. F. JOSEPH, E. E. BRADLEY.

larger than the central bolt. The heads are 0 The 55 

